This article describes how to embed in the latest version of the NS2.35 of a simple new protocol, the reader can not be serious about the implementation of the Protocol code, first familiar with the embedded process because this code still has a
In enterprise applications, Tomcat is used as an application.
Service
But tomcat, as a lightweight application server, has limited load capacity and is overwhelmed after the system is launched. At this time, people will think of clusters,
In a local area network, administrators often need to send a piece of information to a group of users. If you use a one-to send method, although it is feasible, but too cumbersome, there will often be missed, wrong hair. In order to solve this group
/********************************************************************* * i.mx6 Android CAN command line Test * Description: * Use Can-utils to test the can driver here. * 2016-8-9 Shenzhen Nanshan Ping Shan village Zengjianfeng **********************
First, configure the heartbeat of the master node
Heartbeat's main configuration files are ha.cf, Haresources, Authkeys, after the installation of the heartbeat, the default does not have these three files, can be downloaded from the official web
First, Heartbeat overview: How Heartbeat works:The core of heartbeat consists of two parts, the heartbeat monitoring part and the resource takeover part, heartbeat monitoring can be carried out through the network link and the serial port, and
(1) Environment Description
(1) four servers, one with Apache installed, and three with Tomcat installed
(2) apache2.0.55, tomcat5.5.15, jk2.0.4, jdk1.5.6, or jdk1.4.2
(3) IP configuration. The IP address for installing Apache is 192.168.0.88, And
Heartbeat implements Nginx Hot Backup
How Heartbeat implements Hot Standby:
Unlike keepalived's vrrp protocol, heartbeat uses the serial port and ip address for heartbeat monitoring. The Node checks the network connectivity in the configuration file.
Heartbeat implements nginx Hot Backup
How heartbeat implements Hot Standby:
Unlike keepalived's vrrp protocol, heartbeat uses the serial port and ip address for heartbeat monitoring. The Node checks the network connectivity in the configuration file.
Heartbeat realization of the principle of hot preparation:Unlike the Keepalived application VRRP protocol, Heartbeat uses the serial port and the IP to realize the heartbeat monitoring, the node checks the network connectivity in the configuration
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